In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood.
Roof sheathing thickness osb.
For pricing and availability.
Thicknesses range from 5 16 to 3 4 inch and the proper one to use.
Roof sheathing or decking is one of those elements.
We re in dallas so we don t engineer for tremendous live loads for an asphalt shingle and we feel comfortable with 16 oc rafter spacing and 7 16 osb decking.
Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively.
Loads will vary with the pitch of the roof.
Osb roof decking thickness 7 16 1 2 or 5 8 currently we space rafters 16 oc and use 7 16 osb with h clips.
Allowable spans for lumber floor and roof sheathing a b for si.
Most roofs will be sheathed in plywood at least 3 8 inch thick.
Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof.
For pricing and availability.
Oriented strand board 660663 the home depot.
Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8.
Oriented strand board is an excellent choice for roof deck wall and subfloor sheathing.
Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.
Provides exceptional dimensional stability and stiffness.
Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7.
Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones.
Thermostat 7 16 cat ps2 10 osb sheathing application as 4 x 8.
1 inch 25 4 mm.